JPH0611971B2 - Variable V type snow plow - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a variable V-shaped snow removing plow mounted in front of a snow removing vehicle.

(B) Conventional Technology As shown in JP-A-59-220506, a conventional variable V-type snow plow is provided with a support frame (4) attached to the front end of a vehicle so as to be vertically swingable. 4) A pair of left and right plow bodies (2) (2A) are rotatably provided.
(2) A front plate (3) provided between (2A) is fixed to a support frame (4), and a plow edge (10) (10) is provided at a lower end of the plow body (2) (2A). A hoof-shaped front shoe (11) was provided at the lower end of the front plate (3).

When the plow body (2) (2A) turns, the front shoe (11) is formed so that the inner edge of the plow body (2) (2A) and the front plate (3) always form a constant gap. ) Has a structure in which it projects further forward than the plow edge (10) (10).

(C) Problems to be Solved by the Invention Therefore, when removing snow that has been compacted or ice burn, a pair of plow edges (03) (03) are used as shown in FIGS. 5 and 6. After positioning on a straight line, the support frame is swung to incline the snow removal plow (01) to perform flat-cutting work.At this time, the front shoe (02) is attached to the road surface (04). There is a problem not only that the front shoe (02) scrapes the road surface (04) but also the front end portion of the front shoe (02) is prematurely worn because a large force acts on one point of the front shoe (). Yes, when the front end of the front shoe (02) is worn, a wear surface is formed obliquely downward, and the front end of the front shoe (02) has its mouth open, so when performing normal snow removal work, From the worn parts, snow enters under the front shoe (02) and finally the entire snow plow (01). There is a problem that the snow is lifted and snow removal work cannot be performed sufficiently.

(D) Means for Solving Problems The present invention has been made to solve the above problems.
A support frame attached to the front end of the vehicle so as to be vertically swingable, a pair of left and right plow bodies pivotally provided with respect to the support frame, and a support frame provided between the pair of plow bodies and attached to the support frame. In a variable V-shaped snow plow including a front plate, a plow edge is provided at a lower end of the plow body, and a hoof-shaped front shoe is provided at a lower end of the front plate, and a front portion of the front shoe is provided at a front portion of the front shoe. ,
A notch is formed obliquely above, the front surface becomes a truncated circular shape, and the notch portion whose front end is a straight upper portion is provided, and the straight portion is positioned substantially on the same line when the lower ends of the pair of plow edges are positioned on a straight line. It is characterized by that.

(E) Action When removing snow that has been compacted or ice burn,
This is a flat-pressing cutting work.This is done by positioning the lower ends of the pair of plow edges and the straight part of the cutout part of the front shoe in a substantially straight line, and then swinging the support frame to lower the snow plow. Incline it and cut at the straight edge of the lower edge of the plow edge and the notch on the front shoe to remove snow.

At this time, since the front shoe does not protrude beyond the plow edge, the road surface is not scraped and the front shoe is not prematurely worn.

(F) Example An example of the present invention will be described below with reference to the drawings. (1)
Is a variable V-shaped snow plow equipped in front of the snow plow vehicle. This plow (1) includes a support frame (2), a plow body (3) (3),
It is composed of the front plate (4) and so on.

The support frame (2) is attached to the front end of the vehicle so as to be able to swing up and down. The support frame (2) has a connecting portion (5) at the front center thereof.
... is projected forward.

The plow body (3) (3) is rotatably connected via a connecting arm (7) with a connecting shaft (6) vertically penetrating the connecting portion (5). Are formed with the required curvature.

The front plate (4) is provided between the plow bodies (3) and (3) and fixed to the connecting part (5), and the front surface thereof is the plow body.
(3) The pouch body (3) has a curvature corresponding to the curvature of the plow body (3) so that a constant gap is always formed with the inner end of the (3).

At the bottom of the plow body (3) (3) is the plow edge (8) (8)
However, the front shoe (9) is provided at the lower end of the front plate (4), and the plow edge (8) (8) and the front shoe (8) are
Snow is cut by (9). The front shoe (9) has a hoof shape, and the front portion of the front shoe (9) is notched obliquely downward so that the front surface is a truncated circle (10) and the front end is a straight portion (11). A notch (12) is formed.

The linear portion (11) is provided with the cutout portion (12) so that it is located substantially on the same line when the lower ends of the pair of plow edges (8) (8) are aligned.

The present invention is configured as described above, and the operation will be described below.
When performing normal snow removal work, the snow removal plow (1) is placed horizontally as shown in FIG.

Next, when removing snow that has been compacted and ice burns, it is impossible to remove snow with normal snow removing work, so as shown in FIGS. 3 and 4, flat cutting work is performed. After the lower ends of the pair of plow edges (8) and (8) and the linear portion (11) of the cutout portion (12) of the front shoe (9) are positioned substantially in a straight line, swing the support frame (2). The snow plow (1) is tilted downward to cut snow at the lower ends of the plow edges (8) and (8) and the straight part (11) of the notch (12) of the front shoe (9).

At this time, since the front shoe (9) does not project beyond the plow edges (8) (8), the road shoe (14) is not scraped and the front shoe (9) is not prematurely worn.

Therefore, when performing normal snow removal work, snow does not enter under the front shoe (9) and the entire snow removal plow (1) does not float up as in the conventional case, and snow removal work can be sufficiently performed.

(G) Effect of the Invention As described above, according to the present invention, the front portion of the hoof-shaped front shoe provided at the lower end of the front plate is notched obliquely upward so that the front surface becomes a truncated circle and the front end becomes a straight portion. Since I set up a section,
When performing flat pressing cutting work to remove snow that has been compacted or ice burn, the front shoe does not protrude from the plow edge, so there is no need to scrape the road surface and the front shoe does not wear early. Therefore, when performing normal snow removing work, unlike the conventional case, snow does not enter under the front shoe and the whole snow removing plow does not float up, and snow removing work can be sufficiently performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a variable V-shaped snow plow, FIG. 2 is a perspective view of a front shoe, and FIG. 3 is a variable V during cutting work of flat pressing.
Fig. 4 is a plan view of a snow plow profile, Fig. 4 is a view from the arrow A in Fig. 3, Fig. 5 is a plan view of a conventional variable V snow plow at the time of cutting work by flat pressing, and Fig. 6 is a plan view of Fig. 5. FIG. (2) support frame, (3) plow body, (4) front plate, (8)
Is a plow edge, (9) is a front shoe, (10) is a missing circle,
(11) is a straight line portion, and (12) is a cutout portion.

Claims (1)

[Claims] 1. A support frame mounted on a front end of a vehicle so as to be vertically swingable, a pair of left and right plow bodies rotatably provided with respect to the support frame, and a support provided between the pair of plow bodies. In a variable V-shaped snow plow comprising a front plate attached to a frame, a plow edge is provided at a lower end of the plow body, and a hoof-shaped front shoe is provided at a lower end of the front plate. In the front part, a notch is formed obliquely upward, the front surface becomes a truncated circular shape, and a notch part in which the front end is a straight part is provided, and the straight part is substantially when the lower ends of the pair of plow edges are aligned. A variable V-shaped snow plow that is located on the same line.